Near‐Infrared‐Responsive Rare Earth Nanoparticles for Optical Imaging and Wireless Phototherapy

Advanced Science, Год журнала: 2023, Номер 11(8)

Опубликована: Ноя. 9, 2023

Abstract Near‐infrared (NIR) light is well‐suited for the optical imaging and wireless phototherapy of malignant diseases because its deep tissue penetration, low autofluorescence, weak scattering, non‐invasiveness. Rare earth nanoparticles (RENPs) are promising NIR‐responsive materials, owing to their excellent physical chemical properties. The 4f electron subshell lanthanides, main group rare elements, has rich energy‐level structures. This facilitates broad‐spectrum light‐to‐light conversion other forms energy, such as thermal energies. In addition, abundant loadable modifiable sites on surface offer favorable conditions functional expansion RENPs. this review, authors systematically discuss processes mechanisms underlying response RENPs NIR summarize recent advances in applications imaging, photothermal therapy, photodynamic photoimmunotherapy, optogenetics, light‐responsive drug release. Finally, challenges opportunities application under activation considered.

Язык: Английский

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Multicolor Afterglow from Carbon Dots: Preparation and Mechanism

Small Methods, Год журнала: 2023, Номер 8(1)

Опубликована: Окт. 27, 2023

Abstract Carbon dots (CDs), as emerging long afterglow luminescent material, have attracted the attention of researchers and become one hot topics in materials. In recent years, obtained a series CDs‐based materials with different properties utilizing matrix‐assisted self‐protective methods. To meet diverse application needs, development multicolor is focus challenge this field. Most previously reported generally emit blue or green afterglow. Recently, some systems been discovered, emission range can extend from ultraviolet to near‐infrared. However, there lack systematic in‐depth analysis regarding preparation strategy luminescence mechanism Based on this, review summarizes strategies raw reaction parameters. Then, mechanisms are analyzed seven factors, including carbonization degree, surface state, aggregation temperature dependence, excitation multi‐emission center, energy transfer. Moreover, applications introduced. Finally, problems challenges field discussed, future directions analyzed.

Язык: Английский

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Mesoporous collapsing encapsulated carbon dots: Direct evidence for the effect of multiple-confined interactions of silica on efficient long-lived phosphorescence

Chemical Engineering Journal, Год журнала: 2024, Номер 486, С. 150436 - 150436

Опубликована: Март 16, 2024

Язык: Английский

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Inorganic persistent luminescence materials: Emerging optical theranostic agents

Progress in Materials Science, Год журнала: 2024, Номер 142, С. 101246 - 101246

Опубликована: Фев. 6, 2024

Язык: Английский

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Indirect evidence of Bi3+ valence change and dual role of Bi3+ in trapping electrons and holes for multimode X-ray imaging, anti-counterfeiting, and non-real-time force sensing

Acta Materialia, Год журнала: 2024, Номер 273, С. 119953 - 119953

Опубликована: Апрель 22, 2024

Язык: Английский

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Modulation of trap distribution by optimizing Mn2+ doping in CsCdCl3 crystals toward enhanced afterglow performance

Applied Physics Letters, Год журнала: 2024, Номер 124(9)

Опубликована: Фев. 26, 2024

Exploring efficient and stable long-persistent luminescence (LPL) materials is of great value for promoting their advanced applications. Here, the metal halide CsCdCl3:Mn2+ crystals with tunable afterglow properties good stability were grown by a facile solution method. Upon ultraviolet excitation, exhibited bright orange emission at 590 nm from d–d transition Mn2+ ions. doping concentrations matter LPL performance. By optimizing amount Mn2+, an enhanced duration up to 12 000 s was achieved, compared undoped sample, originating trap redistribution. The deep traps in CsCdCl3:0.1Mn2+ crystal that provide little contribution room temperature shifted shallow levels, thus synergistically enhancing intensity duration. Based on variable durations tuning concentrations, multi-dimensional information storage encryption model designed. This work gives understanding effect provides examples development encryption.

Язык: Английский

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Phosphor-converted light-emitting diodes in the marine environment: Current status and future trends

Chemical Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

The exploitation and utilization of resources in marine environments have ignited a demand for advanced illumination optical communication technologies. Light-emitting diodes (LEDs), heralded as "green lighting sources", offer compelling solution to the technical challenges exploration due their inherent advantages. Among myriad LED technologies, phosphor-converted light-emitting (pc-LEDs) emerged frontrunners applications. At heart pc-LEDs lie phosphor materials, colour-converters that orchestrate emission light. In environment, blue-green light with wavelength 440-570 nm exhibits deepest penetration depth, while other wavelengths are rapidly attenuated shallow layer. Additionally, specific crucial particular However, moist environment well continuous stable pose formidable challenge environmental stability phosphors. Therefore, developing phosphors exceptional colour purity high thermal moisture is paramount Herein, this review delves into application pc-LED technology underwater fishery, exploring development strategies tailored environment. insights presented serve valuable reference further research on devices.

Язык: Английский

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Multicolor Rare‐Earth Film with Ultra‐Long Afterglow for Diverse Energy‐Saving Applications

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 20, 2025

Abstract Rare‐earth afterglow materials, with their unique light‐storage properties, show great promise for diverse applications. However, broader applicability is constrained by challenges such as poor solvent compatibility, limited luminescent efficiency, and monochromatic emissions. In this study, these limitations are addressed blending ZnS various rare‐earth phosphors including (Sr 0.75 Ca 0.25 )S:Eu 2+ ; SrAl 2 O 4 :Eu , Dy 3+ Sr MgSi 7 to modulate deep trap mechanisms significantly enhance both the light capture capabilities. Using electrospinning, a large‐area (0.4 m × 3 m) film successfully fabricated tunable colors an extended duration exceeding 30 h. This demonstrates thermoluminescence, enabling potential integration into fire‐rescue protective clothing enhanced emergency visibility. greenhouse settings, it effectively supports chlorophyll synthesis optimizes conditions plant growth over 24‐h cycle. For tunnel garage applications, captures stores from vehicle headlights at distances of up 70 meters. The scalability cost‐effectiveness underscore its considerable real‐world applications across multiple fields, marking significant advancement in sustainable illumination technology.

Язык: Английский

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Investigating the influence of mono-, di-, and trivalent co-dopants (Li+, Na+, K+, Ca2+, Bi3+) on the photoluminescent properties and their prospective role in data security applications for SrAl2O4:Tb3+ nanophosphors synthesized via an eco-friendly combustion method

Materials Science and Engineering B, Год журнала: 2023, Номер 299, С. 117008 - 117008

Опубликована: Ноя. 21, 2023

Язык: Английский

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Principles, properties, and sensing applications of mechanoluminescence materials

Journal of Materials Chemistry C, Год журнала: 2023, Номер 11(43), С. 14968 - 15000

Опубликована: Янв. 1, 2023

We introduced the background of mechanoluminescence (ML) materials development and mainstream ML principles. The applications in sensing neighborhood were introduced.

Язык: Английский

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